When you shut down your computer, the power supply shuts down faster than the Zip or Jaz drive can eject the cartridge. This behavior is normal, and occurs with other removable media (such as CDs and Syquest cartridges). Since external Zip and Jaz drives have their own power supplies, they will always eject their media when you shut down or restart.
When you restart your computer, power continues to be provided, so the internal drives will be able to eject their cartridges as a part of the rebooting process.
To summarize:
* If the computer is RESTARTED, a Jaz/Zip cartridge WILL eject.
* If the computer is SHUT DOWN, a Jaz/Zip cartridge WILL NOT eject.
If you want your cartridges to eject at shut down, you will need to drag the volume icons to the trash before selecting "Shut Down" from the Special menu.
Machines Affected: All Power systems with Zip and Jaz drives